This South-Danube gateway of the country is the location for the most spectacular Hungarian folk tradition of "Busó Halloween"-a merry carnival to bury the winter and welcome the spring with horrifying masks, designed to frighten the Ottoman Turks that occupied Hungary. The blackest day in Hungarian history, the battle of August 29th 1526 called the 'Mohács tragedy', when the young king Lajos II and about 20 thousand Hungarian soldiers were killed, took place here and led to 150 years of Turkish rule.